Abstract
The structural organization of satellite DNAs of mustard Brassica nigra and lemon Citrus limon has been studied by digestion with restriction nucleases. Analysis of DNA products produced by EcoRI and Bam I shows that two satellite DNAs contain long range periodicities belonging to several repeated sequences. The periodicities in two satellite DNAs differ characteristically, however, they have been found to contain common homologous sequences. Using the restriction nuclease Bsp I, a highly periodical fractions has been found in Citrus satellite DNA, composed of Bsp I fragments ranging from 80 to 1240 basepain. The major repeat units comprise five Bsp I fragments ranging from 80 to 200 bp. These fractions characterized by a high content of 5-methyl-cytosine.
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Fodor, I., Beridze, T. Characterization of plant satellite DNA using restriction nucleases. Mol Biol Rep 6, 17–20 (1980). https://doi.org/10.1007/BF00775748
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DOI: https://doi.org/10.1007/BF00775748